Trans-Varestraint test is basically used for hot cracking susceptibility of materials. In the Trans-Varestrain test, bending deformation applied to specimen during welding produce cracking. From shape and size cracks, indices such as Brittle temperature range (BTR) critical strain are obtained. The nominal generated by can be calculated from thickness radius block. However, it has been reported...

During the welding of 690 nickel-based alloy, solidification cracking (SFC) and ductility-dip (DDC) easily forms, which has a negative effect on quality welded joints service life. The present study examined effects heat input cladding layers SFC DDC, as well their formation mechanism. microstructure observation, elemental distribution, Varestraint test were carried out. results show that DDC f...